Primes p = 8*r-1 such that all the prime factors of r are 7 mod 12.

Terms

a(0) =7a(1) =151a(2) =631a(3) =823a(4) =1063a(5) =1303a(6) =1783a(7) =2647a(8) =2887a(9) =3511a(10) =4423a(11) =4567a(12) =4951a(13) =5527a(14) =6007a(15) =6871a(16) =7351a(17) =7687a(18) =7927a(19) =8311a(20) =9127a(21) =10663a(22) =11383a(23) =11863a(24) =12007a(25) =12343a(26) =12487a(27) =13591a(28) =14071a(29) =15031